I tried and failed to do this. I am trying to solve a problem that I don't know arduino wifi shield's dynamically assigned IP address. I read about broadcast address. With my settings below I just can't make it work.

gateway:192.168.1.1IP subnet Mask 255.255.255.0

I tried broadcast address 255.255.255.255 and 192.168.1.255I can't reach my arduino, which can be reached at 182.168.1.5

Am I wrong to assume a broadcast address on a web browser is going to reach my arduino?

At command prompt, type "arp -a" then enteryou get lists a number of MAC addresses with the associated IP addresses. Since you have Arduino MAC address, scroll down the list to find the associated IP address.

At command prompt, type "arp -a" then enteryou get lists a number of MAC addresses with the associated IP addresses. Since you have Arduino MAC address, scroll down the list to find the associated IP address.

Thanks. It seems to work on a PC. Is thers any app that will list address table on a tablet or smart phone? I would like to ultimately use a smart phone to join the local wifi network, find the IP address of the arduino, and direct my smart phone web browser to arduino.

Thanks. It seems to work on a PC. Is thers any app that will list address table on a tablet or smart phone? I would like to ultimately use a smart phone to join the local wifi network, find the IP address of the arduino, and direct my smart phone web browser to arduino.

Here is my way;- Open router admin web GUI page, It is there! It might be dependent on router OS.

Thanks! The router is going to be a 3G Android device serving as a wifi hotspot inside of a weather-proof box so I prefer the hard ways. Maybe an easy way is to try "all possible" addresses or just look at your own address when you connect to this 3G Android device. Say it's 192.168.1.3, then guess 192.168.1.2 for arduino

Thanks! The router is going to be a 3G Android device serving as a wifi hotspot inside of a weather-proof box so I prefer the hard ways. Maybe an easy way is to try "all possible" addresses or just look at your own address when you connect to this 3G Android device. Say it's 192.168.1.3, then guess 192.168.1.2 for arduino

Sure, there are 2 ways;-

1. if router/hotspot support mac address mask, now you could mask out all other mac address except Arduino's. Arduino will take number one at the pool i.e. 192.168.1.2.

2. if router/hotspot support IP Address and MAC Address bind. now you glue them together.